How to Improve Your Credit Score in the UK: What Actually Works
Closing old cards, checking your score, paying more than the minimum — some popular credit advice is flat-out wrong. Here's what the data actually shows.
Credit scores are poorly understood — partly because there's a lot of bad advice out there, and partly because the scoring systems (Experian, Equifax, TransUnion) don't explain themselves clearly. Here's what actually moves the needle.
What Goes Into Your UK Credit Score
| Factor | Weight | What It Means |
|---|---|---|
| Payment history | ~35% | Have you paid on time, every time? |
| Credit utilisation | ~30% | How much of your available credit are you using? |
| Length of credit history | ~15% | How long have you had credit? |
| Credit mix | ~10% | Do you have different types of credit? |
| New credit | ~10% | Have you applied for lots of new credit recently? |
What Actually Improves Your Score
1. Never miss a payment (most important)
A single missed payment can drop your score significantly and stays on your file for 6 years. Set up Direct Debits for everything — credit cards, phone contracts, utilities. Never miss one.
2. Keep credit utilisation below 30%
If your credit card limit is £1,000, try not to have more than £300 on it at any time. Lower is better. If you regularly spend more than that, ask your provider to increase your limit (without increasing your spending) — your utilisation percentage drops.
3. Register on the electoral roll
This is the single fastest win — takes 5 minutes at gov.uk/register-to-vote and can add 50+ points to your score immediately. Lenders use it to confirm your address and identity.
4. Don't close old accounts
Closing a credit card removes its available credit from your utilisation calculation (making your utilisation % go up) and shortens your average credit history. Keep old cards open and use them occasionally.
5. Space out credit applications
Each hard search (full application) temporarily reduces your score. Don't apply for multiple cards, loans, or even phone contracts in a short period. Space applications at least 3–6 months apart.
Credit Score Myths Debunked
- Myth: Checking your own score damages it. Truth: Soft searches (checking your own score) have zero impact.
- Myth: Earning more money improves your score. Truth: Income isn't directly factored into credit scores.
- Myth: You have one universal credit score. Truth: You have three different scores from Experian, Equifax, and TransUnion — and they differ.
- Myth: Paying your minimum payment builds good credit. Truth: It avoids damage but paying in full is much better.
Free Tools to Check All Three Scores
- ClearScore — Equifax score, free forever
- Credit Karma — TransUnion score, free forever
- Experian free — Experian score, free tier available
Check all three monthly. Dispute any errors immediately — incorrect information on your credit file is more common than you'd think and can significantly impact your score.